Home / 219,637.38-329,490.22-77,501.54

Finding the Fourth Proportional to 219,637.38, 329,490.22 and 77,501.54

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Solution

The fourth proportional to 219,637.38, 329,490.22 and 77,501.54 is: 116,264.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,637.38 : 329,490.22 = 77,501.54 : x
  2. Step 2: Convert to fraction form
    219,637.38/329,490.22 = 77,501.54/x
  3. Step 3: Cross multiply
    219,637.38x = 329,490.22 × 77,501.54
  4. Step 4: Simplify right side
    219,637.38x = 25,535,999,464.94
  5. Step 5: Solve for x
    x = 25,535,999,464.94/219,637.38
  6. Step 6: Final answer
    x = 116,264.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.